1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ivahew [28]
3 years ago
12

Based on the passage, if the influenza virus pictured had a mutated hemagglutinin protein, urumin would most likely A) still be

very effective against it. B) be somewhat effective against it. C) be ineffective against it. D) harm the host instead of the virus.
English
1 answer:
andrezito [222]3 years ago
8 0

Answer:

Viruses are prone to clumping together. Many times extensive sequence changes may not make a difference in antibody recognition. While sometimes small changes in HA are sufficient for a large antigenic distance. That is, with few mutations, some Hemagglutinins may be much less recognized by the antibodies.

Explanation:

As the virus replicates in the body of infected people, the immune system captures several pieces of viral protein, the antigenic antibodies, and produces antibodies against them. There are other types of immune responses, too, but they do not cause long-term immunity, so that is beside the point. The two main viral targets of the antibodies are Hemagglutinin and Neuraminidase, since they are the most exposed proteins of the virus. When antibodies associate with them, in addition to signaling macrophages and other types of defense cells that that foreign body (the virus) has to be attacked, they can still prevent the virus from working. An antibody that attacks the Hemagglutinin receptor recognition region prevents it from associating with cells. They are the so-called neutralizing antibodies.

You might be interested in
The word “dexterous” is used several times in the passage. What is the meaning of “dexterous” as used in the passage?
andreyandreev [35.5K]

Answer:

The correct answer is A. Skillful.

Explanation:

The word "dexterous" is an adjective whose meaning implies that a person has, with respect to a certain topic, not only a complete and punctual knowledge, but also a vast experience in the handling of said knowledge, and the ability to apply said knowledge and said experience through mechanisms of action that allow to master the question without major difficulties. In short, the person who has absolute control over some subject or question is dexterous.

8 0
3 years ago
Read the following passage and answer the question.
mihalych1998 [28]
The word lurid means that something is extremely bright, creating a harsh or unnatural effect. In this context, the connotation of the word lurid would be hot
7 0
3 years ago
What figure of speech is the saying: She has a bubbly personality.
anzhelika [568]
C because its a figure of speech and its not literally applicable. I hope I helped! :)
3 0
4 years ago
Read the passage. The girl stared out the window at the other children playing a game. She wondered if she would ever be able to
charle [14.2K]

Answer:

Based on the context clues, the character feels sad.

Explanation:

A context clue can be defined as a piece of information given by the author that can help the reader understand something.

In the excerpt we are studying here, it is possible to find some information that leads us to believe the character is sad. If the author had only described the girl staring out the window at the other children playing a game, we wouldn't be able to conclude enough. She could be tired, sad... She could even be excited about it.

The author, however, tells us she's asking herself if she will ever play with them and how they can be friends. If she is watching the other kids while feeling left out, she is most likely sad. The other options do not seem to match these context clues.

3 0
3 years ago
How do his words show his relationship with nature? Muir
laila [671]

The inference is that the words reveling and rejoicing shows that the narrator showed his enjoyment and excitement for nature.

<h3>What is an inference?</h3>

It should be noted that an inference is the conclusion that can be deduced based on the information that is provided in the literary work.

It should be noted that the narrator see nature as something that brings excitement and happiness.

Therefore, the inference is that the words reveling and rejoicing shows that the narrator showed his enjoyment and excitement for nature.

Learn more about inference on:

brainly.com/question/25280941

#SPJ1

4 0
2 years ago
Other questions:
  • What can you infer from the following sentence? the man in the grocery store had a cart full of dog food. the man is new in town
    10·2 answers
  • Which of the following is true about sports and the media?
    10·1 answer
  • PLEASE HELP
    15·2 answers
  • Which of the following is the strongest thesis for an argumentative research paper?
    13·1 answer
  • Which best corrects the clause fragment? The dog slept in the bed. That my brother built. A. The dog slept. In the bed that my b
    14·1 answer
  • Read the excerpt from Poe’s "The Fall of the House of Usher." I dared not -- oh, pity me, miserable wretch that I am! -- I dared
    7·2 answers
  • A short paragraph about ''Sinhala Language ''<br><br>Will give the brainliest.!<br>​
    7·2 answers
  • If, instead of worrying about the nightmen, Cassie was frustrated with Mama for not telling her what was going on, which type of
    8·1 answer
  • What are the skills of a good primary school teacher
    5·1 answer
  • HELPPPP!!!! AHHHHH PLSSSS
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!